CVE-2024-8383 : Firefox normally asks for confirmation before asking the operating system to fin

Firefox normally asks for confirmation before asking the operating system to find an application to handle a scheme that the browser does not support. It did not ask before doing so for the Usenet-related schemes news: and snews:. Since most operating systems don't have a trusted newsreader installed by default, an unscrupulous program that the user downloaded could register itself as a handler. The website that served the application download could then launch that application at will. This vulnerability affects Firefox < 130, Firefox ESR < 128.2, and Firefox ESR < 115.15.

Published 2024-09-03 13:15:06

Updated 2024-10-30 17:35:16

Source Mozilla Corporation

View at NVD, CVE.org

Products affected by CVE-2024-8383

Mozilla » Firefox
Versions before (<) 130.0
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Matching versions
Mozilla » Firefox Esr
Versions before (<) 115.15
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Matching versions
Mozilla » Firefox Esr
Versions from including (>=) 128.0 and before (<) 128.2
cpe:2.3:a:mozilla:firefox_esr:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2024-8383

EPSS FAQ

0.20%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 42 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2024-8383

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source	First Seen
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	134c704f-9b21-4f2e-91b3-4a467353bcc0	2024-10-30
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N	3.9	3.6	NIST	2024-09-04
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: High Availability: None
4.3	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N	N/A	N/A	RedHat-CVE-2024-8383	2024-09-03
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: Low Availability: None

CWE ids for CVE-2024-8383

CWE-1188 Initialization of a Resource with an Insecure Default

The product initializes or sets a resource with a default that is intended to be changed by the administrator, but the default is not secure.

Assigned by: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

References for CVE-2024-8383

https://bugzilla.mozilla.org/show_bug.cgi?id=1908496

Access Denied
Issue Tracking;Permissions Required
https://www.mozilla.org/security/advisories/mfsa2024-41/

Security Vulnerabilities fixed in Firefox ESR 115.15 — Mozilla
Vendor Advisory

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2024-39/

Security Vulnerabilities fixed in Firefox 130 — Mozilla
Vendor Advisory

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2024-44/

Security Vulnerabilities fixed in Thunderbird 115.15 — Mozilla

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2024-43/

Security Vulnerabilities fixed in Thunderbird 128.2 — Mozilla

CVEs referencing this url
https://www.mozilla.org/security/advisories/mfsa2024-40/

Security Vulnerabilities fixed in Firefox ESR 128.2 — Mozilla
Vendor Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2024-8383

Products affected by CVE-2024-8383

Exploit prediction scoring system (EPSS) score for CVE-2024-8383

CVSS scores for CVE-2024-8383

CWE ids for CVE-2024-8383

References for CVE-2024-8383